多系统双离子对称电池的单个有机电极
Wenjun Li1, Huilin Ma1, Wu Tang2
1School of Materials and Energy, University of Electronic Science and Technology of China (UESTC), Chengdu, China.
Nature communications
|November 4, 2024
概括
一个新的有机双极电极,diquinoxalino[2,3-a:2:2
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 有机电子 有机电子
背景情况:
- 有机电极为多功能离子存储提供了大的空隙空间.
- 设计稳定的有机材料对于先进的电池技术至关重要.
研究的目的:
- 设计和合成一个小分子有机双极电极,用于各种离子适应.
- 为了评估设计电极的电化学性能在,Na和K电池.
主要方法:
- 双诺素[2,3-a:2',3'-c]氨酸-2,6,10-三氨酸 (DQPZ-3PXZ) 的合成.
- 在基于Li/Na/K的半和双离子对称电池中进行电化学测试.
- 长期自行车稳定性的评估.
主要成果:
- DQPZ-3PXZ证明了五种不同的对抗离子 (Li+,Na+,K+,PF6-,FSI-) 的稳定托管.
- 在半电池中实现了高峰放电容量 (257/243/253 mAh g-1) 和能量密度 (609/530/572 Wh kg-1).
- 双离子电池在15,000个周期中表现出稳定的容量 (85/66/72 mAh g-1) 和能量密度 (59/50/52 Wh kg-1),并保持出色的容量.
结论:
- 设计的DQPZ-3PXZ是一种强大的有机双极电极,能够容纳多种离子类型.
- 这种材料对基于,纳和K的双离子电池具有显著的承诺,具有高性能和长寿命.
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